From:
Charles Robert Darwin
To:
Henry Denny
Date:
7 Nov [1844]
Source of text:
Cleveland Health Sciences Library (Robert M. Stecher collection)
Summary:
Discusses HD’s information that same species of birds at remote stations have identical parasites. Urges him to investigate N. American land-bird parasites.
Is deeply interested in everything connected with geographical distribution, and the differences between species and varieties.
Contributor:
Darwin Correspondence Project